cascading and many-to-many relationships doubt

franklin.neves · **Joined:** Mon May 19, 2008 4:17 pm **Posts:** 1

I have an Entity A that has a many to many association with Entity B. Something like this:

Code:

<class name="com.test.A" table="T_A">
  <id name="id" column="A_ID" unsaved-value="null">
    <generator class="increment"/>
  </id>
  <property name="name" column="A_NAME" not-null="true"/>
  <set name="collectionB" table="T_A_B" cascade="all-delete-orphan">
    <key column="A_ID" />
    <many-to-many class="com.test.B"  column="B_ID" />
  </set>
</class>

<class name="com.test.B" table="T_B">
  <id name="id" column="B_ID" unsaved-value="null">
    <generator class="increment" />
  </id>
  <property name="name" column="B_NAME" not-null="true" />
  <set name="collectionA" table="T_A_B" inverse="true">
    <key column="B_ID" />
    <many-to-many class="com.test.A" column="A_ID"/>
  </set>
</class>

The schema is T_A --< T_A_B >-- T_B

I know that if I remove the T_A_B references in A instances, when I update the A the T_A_B will be deleted. But I'd like to know what I have to do to remove the B instances when yours references was removed.